Busbar assembly and motor comprising same

ABSTRACT

Provided is a busbar assembly including a busbar body having an inner radius and an outer radius, and a plurality of terminals coupled to the busbar body and including bodies and electrodes, wherein all the electrodes of the plurality of the terminals are disposed between the inner radius and the outer radius, the plurality of the terminals are disposed at the same height, and at least two terminals among the plurality of the terminals are disposed at different locations around a center of the busbar body in radial and circumferential directions. Thus, an advantageous effect is provided in that a manufacturing cost may be reduced by significantly reducing an amount of generated scrap.

TECHNICAL FIELD

The present invention relates to a busbar assembly and a motor includingthe same.

BACKGROUND ART

In a motor, a rotational shaft formed to be rotatable, a rotor coupledto the rotational shaft, and a stator fixed to an inside of a housingare provided, and the stator is installed along a circumference of therotor to have a gap between the rotor and the stator. In addition, coilsconfigured to generate rotational magnetic fields are wound around thestator to induce an electrical interaction with the rotor to rotate therotor.

Busbars electrically connected to the coils are disposed at an upper endof the stator. The busbars generally include busbar housings having aring shape and busbar terminals coupled to the busbar housings to beconnected to the coils. Generally, the busbar terminal of the busbar isformed by pressing sheet metal such as a copper plate.

Here, a plurality of electrodes directly connected to the coils may beprovided on the busbar terminals, and each of the electrodes may beformed to be bent due to spatial limitation or a location of aconnection end of the coil. Due to a shape of the electrode, there areproblems in that a size of a mold increases, and an amount of scrapdiscarded after forming the electrode significantly increases.

As a result, there are problems in that a loss rate of raw material islarge and a large amount of cost and effort are needed to manufacture amold.

Technical Problem

The present invention is directed to providing a busbar assembly withwhich an amount of scrap may be decreased and a motor including thesame.

In addition, the present invention is also directed to providing abusbar assembly with which an amount of material thereof may bedecreased, a motor, and a vehicle including the same.

Objectives to be achieved through embodiments are not limited to theabove-described objectives, and other objectives which are not describedabove will be clearly understood to those skilled in the art.

Technical Solution

One aspect of the present invention provides a busbar assemblyincluding: a busbar body having an inner radius and an outer radius; anda plurality of terminals coupled to the busbar body and including bodiesand electrodes, wherein all the electrodes of the plurality of theterminals are disposed between the inner radius and the outer radius.

Another aspect of the present invention provides a busbar assemblyincludes a busbar body, a plurality of terminals coupled to the busbarbody and including bodies and electrodes, wherein the plurality of theterminals are disposed at the same height, and at least two terminalsamong the plurality of the terminals are disposed at different locationsaround a center of the busbar body in radial and circumferentialdirections.

Still another aspect of the present invention provides a busbar assemblyincluding a busbar body, and a plurality of terminals coupled to thebusbar body and including bodies and electrodes, wherein the pluralityof the terminals are disposed at the same height, and at least twoterminals among the plurality of the terminals are disposed at differentlocations around a center of the busbar body in a radial direction.

The busbar body may include at least one electrode hole.

The electrode hole may be disposed below the electrode of the terminal.

The electrode hole may be disposed around the center of the busbar bodyin the circumferential direction at a location corresponding to theelectrode of the terminal.

All the electrodes of the plurality of the terminals may be disposed atdifferent locations around the center of the busbar body in thecircumferential direction.

The body may have a belt shape, and the electrode may have a hook shapein which both end portions of the body extend in longitudinal directionsof the body and are bent.

The electrodes formed at the both end portions of the body may have thesame shape.

The electrodes formed at the both end portions of the body may be formedto be bent in the same direction.

At least one electrode among a plurality of the electrodes may protrudeinward toward the center of the busbar in the radial direction.

The electrode disposed at an outermost side around the center of thebusbar in the radial direction may protrude inward.

At least one electrode among the plurality of the electrodes mayprotrude toward the outside from the center of the busbar in the radialdirection.

The electrode disposed at an innermost side around the center of thebusbar in the radial direction may protrude toward the outside.

A width of the body may be the same as that of the electrode.

The busbar body may include a base in which the electrode hole is formedand a terminal holder which is formed on the base and into which thebody of the terminal is inserted.

All the electrodes of the plurality of the terminals may be disposed atthe same height.

All the electrodes may be coplanar.

The busbar body may include an inner radius and an outer radius, and allthe electrodes of the plurality of the terminals may be disposed betweenthe inner radius and the outer radius.

Yet another aspect of the present invention provides a motor includingthe busbar assembly, a stator including a coil connected to the busbarassembly, a rotor disposed inside the stator, and a rotational shaftcoupled to the rotor.

Advantageous Effects

As described above, since a terminal of a busbar is formed using sheetmetal having a belt shape which does not have divided portions, anamount of generated scrap is significantly decreased, and thus there isan advantageous effect in that a manufacturing cost is reduced.

Since a busbar assembly is configured such that electrodes of allterminals are disposed between inner and outer radii of a busbar body, aplurality of terminals can be disposed in a single layer, and thus thereare advantageous effects in that a shape of the terminal can besimplified, and a manufacturing cost of the busbar assembly can besignificantly reduced.

Since a terminal holder configured to fix only the belt-shaped body ofthe terminal is provided, a mold material forming the busbar body can bereduced, and thus there is an advantageous effect in that amanufacturing cost is reduced.

Since the plurality of terminals are disposed at different locations atthe same height in circumferential and radial directions, there areadvantageous effects in that the shape of the terminal can besimplified, and the manufacturing cost of the busbar assembly can besignificantly reduced.

Since the electrodes of the terminals can be disposed to be coplanar atdifferent locations in the radial direction, heights of the busbars donot need to be increased in multiple stages or the terminals do not needto be alternately installed so as to form different terminal heights,and thus there are advantageous effects in that the shape of theterminal can be simplified, and the manufacturing cost of the busbarassembly can be significantly reduced.

DESCRIPTION OF DRAWINGS

FIG. 1 is a view illustrating a motor according to an embodiment.

FIG. 2 is a view illustrating a busbar assembly according to theembodiment.

FIG. 3 is a view illustrating the busbar assembly and a stator.

FIG. 4 is a view illustrating connection ends of coils connected toterminals.

FIG. 5 is a view illustrating the coils wound around the stator.

FIG. 6 is a view illustrating locations of the connection ends of thecoils illustrated in FIG. 5.

FIG. 7 is a view illustrating a busbar body.

FIG. 8 is a view illustrating an inner radius and an outer radius of thebusbar body illustrated in FIG. 7.

FIG. 9 is a view illustrating a region in which electrodes of theterminals are disposed.

FIG. 10 is a perspective view illustrating the terminal.

FIG. 11 is a side view illustrating the terminal.

FIG. 12 is a view illustrating a sheet metal material.

FIG. 13 is a view illustrating locations of the electrodes of theterminals.

FIG. 14 is a view illustrating directions of the electrodes of theterminals.

FIG. 15 is a view illustrating locations of the electrodes in acircumferential direction.

FIG. 16 is a view illustrating the terminals.

FIG. 17 is a view illustrating the terminals as seen in a directionindicated by S of FIG. 16.

FIG. 18 is a view illustrating terminal holders.

FIG. 19 is a plan view which illustrates the busbar assembly and inwhich locations of the electrode holes are illustrated.

FIG. 20 and FIG. 21 are views illustrating a region in which theterminals are disposed.

FIG. 22 is a view illustrating the locations of the electrodes of theterminals in a radial direction.

MODES OF THE INVENTION

Hereinafter, exemplary embodiments of the present invention will bedescribed in detail with reference to the accompanying drawings.Purposes, specific advantages, and novel features of the invention willbe clear from exemplary embodiments and the following detaileddescriptions in connection with the accompanying drawings. Moreover,terms and words used in this specification and claims should not beinterpreted as limited to commonly used meanings or meanings indictionaries and should be interpreted with meanings and concepts whichare consistent with the technological scope of the invention based onthe principle that the inventors have appropriately defined concepts ofterms in order to describe the invention in the best way. In addition,in descriptions of the invention, when detailed descriptions of relatedwell-known technology are deemed to unnecessarily obscure the gist ofthe invention, they will be omitted.

FIG. 1 is a view illustrating a motor according to an embodiment.Referring to FIG. 1, the motor according to the embodiment may include abusbar assembly 100, a stator 200, a rotor 300, and a rotational shaft400.

Referring to FIG. 1, the busbar assembly 100 is connected to coils 20wound the stator 200. The busbar assembly 100 is a unit disposed on thestator 200 and configured to connect the coils 20 wound around thestator 200.

The stator 200 may be formed by stacking a plurality of steel platesincluding yokes having a ring shape and teeth disposed at equal angularintervals in a circumferential direction and protruding toward an insidethereof in a radius direction. The coils 20 configured to generaterotational magnetic fields may be wound around the teeth. Here, thestator 200 and the coils 20 may be insulated from each other by aninsulator 10.

The rotor 300 is disposed inside the stator 200. The rotor 300 may beformed by a magnet being coupled to a rotor core, and in some cases, arotor core and a magnet may also be integrally formed. In addition, therotor 300 may be formed by a magnet being coupled to a circumferentialsurface of a rotor core or a magnet being inserted into a pocket of arotor core.

When current is supplied to the coils 20 wound around the stator,electrical interactions are induced between the coils 20 and the rotor300 to rotate the rotor 300. When the rotor 300 rotates, the rotationalshaft 400 is rotated and power is provided.

A sensing magnet 500 is a unit coupled to the rotational shaft 400 to bein conjunction with the rotor 300 so as to detect a location of therotor 10.

A sensor configured to detect a magnetic force of the sensing magnet 500may be disposed on a printed circuit board 600. Here, the sensor may bea hall integrated circuit (IC). The sensor detects a change in N and Spoles of the sensing magnet 500 to generate a sensing signal.

FIG. 2 is a view illustrating a busbar assembly according to theembodiment. Such a FIG. 2 is a view clearly illustrating only mainfeatures for the purpose of clear conceptual understanding of theembodiment, and as a result, various modifications are expected and thescope of the embodiment is not limited to specific shapes illustrated inthe drawing.

Referring to FIG. 2, the busbar assembly 100 may include a terminal 110and a busbar body 120.

The terminal 110 is a portion connected to the coil 20, and may beprovided with a plurality of terminals 110. The busbar body 120 may beformed to be a frame type having a ring shape.

FIG. 3 is a view illustrating the busbar assembly and a stator, and FIG.4 is a view illustrating connection ends of coils connected toterminals.

Referring to FIGS. 3 and 4, the busbar assembly 100 may be disposed onthe stator 200. Some connection ends 21 a among connection ends 21 ofthe coils 20 wound around the stator 200 may be connected to theterminals 110 for connecting the coils 20 wound around divided cores ofthe stator 200. Other connection ends 21 b among the connection ends 21of the coils 20 may be connected to neutral terminals 30. In addition,still other connection ends 21 c among the connection ends 21 of thecoils 20 may be directly connected to power terminals (not shown) havingU-,V-, and W-phases.

FIG. 5 is a view illustrating the coils wound around the stator, andFIG. 6 is a view illustrating locations of the connection ends of thecoils illustrated in FIG. 5.

Referring to FIGS. 5 and 6, some of the connection ends 21 of the coils20 wound around the stator 200 may be disposed at different locationsaround a center C of the stator 200 in a radial direction. For example,a plurality of connection ends 21 may be divided and disposed on aplurality of tracks O1, O2, and O3 around the center C. Here, the centerC may be a center of the stator 200. The connection ends 21 of the coilsmay be divided into connection ends located at an outermost side,connection ends located at a middle, and connection ends located at aninnermost side.

Since the connection ends 21 of the coils 20 are divided and distributedon the tracks having different radii, the terminals 110 connected to theconnection ends 21 of the coils 20 may be formed to have a more simpleshape. That is, in a case in which the connection ends 21 of the coils20 are located on the same track, the electrodes of the terminal 110 arelocated in multiple layers or formed to be bent due to a limitation of acoupling space, but in a case in which the connection ends 21 of thecoils 20 are divided and distributed on different tracks, the shape ofthe terminal 110 may be designed to be simple.

FIG. 7 is a view illustrating a busbar body, and FIG. 8 is a viewillustrating an inner radius and an outer radius of the busbar bodyillustrated in FIG. 7.

Referring to FIG. 7, the busbar body 120 may include a base 121 andterminal holders 122. The base 121 and the terminal holders 122 may onlybe separately described according to shapes and functional propertiesthereof, and may be one mold member in which the base 121 and theterminal holders 122 are vertically connected to each other.

Referring to FIG. 8, the base 121 may be formed to be a type of plate ina ring shape having an inner radius R1 and an outer radius R2. Inaddition, the base 121 may include electrode holes 123. The electrodeholes 123 are disposed below the terminals 110 (see FIG. 4). Inaddition, the electrode holes 123 may be disposed to be arranged atlocations of the electrodes 112 around the center C in thecircumferential direction. Here, the center C may be a center of thebusbar body 120.

Referring to FIGS. 3 and 8, the connection ends 21 of the coils 20 passthrough the arranged corresponding electrode holes 123 and are locatedabove the base 121. Bodies 111 of the terminals 110 are inserted intothe terminal holders 122.

FIG. 9 is a view illustrating a region in which electrodes of theterminals are disposed, FIG. 10 is a perspective view illustrating theterminal, and FIG. 11 is a side view illustrating the terminal.

Referring to FIGS. 8 to 10, the electrodes 112 of all the terminals 110are disposed between the inner radius R1 and the outer radius R2 of thebase 121. That is, the terminals 110 may be coupled to the busbar body120 such that all the electrodes 112 are disposed in a gap A (shadowregion) between a reference line P1 formed along the inner radius R1 ofthe base 121 and a reference line P2 formed along the outer radius R2 ofthe base 121.

The electrodes 112 may be located such that the connection ends 21 ofthe coils 20 wound around the stator 200 are disposed at differentlocations around the center C of the stator 200 in a radial direction.In addition, the locations of the electrodes 112 may simplify the shapeof the terminals 110.

Referring to FIGS. 11 and 12, the electrode 112 may be formed by bothend portions of the body 111 being bent to have a hook shape. Here, theelectrode 112 may be formed to be bent in a longitudinal direction ofthe body 111. In addition, the body 111 may be formed to be curved orbent to form an arc around the center C of the busbar body 120.

The electrodes 112 connected to both end portions of the body 111 andhaving the hook shape may be formed by the end portions of the body 111being bent in a predetermined direction, such as a counterclockwisedirection A. Here, the electrodes 112 of all the terminals 110 coupledto the busbar body 120 may be formed to be bent from the bodies 111 inthe same direction.

This is for minimizing generation of scrap and simplifying amanufacturing process to reduce a manufacturing cost by equalizing sizesand shapes of the terminals 110 included in the busbar assembly 100. Inaddition, this is also for effectively ensuring a space for coupling tothe connection ends 21 of the coils 20.

FIG. 12 is a view illustrating a sheet metal material.

Referring to FIGS. 10 and 12, the terminal 110 may be formed such that awidth W1 of the body 111 having a belt shape is the same as a width W2of the electrode. Here, an unfolded shape of a raw material 11 includedin the terminal 110 may be a belt shape which does not have dividedportions because the width W1 of a raw material 11 a corresponding tothe body 111 of the terminal 110 is the same as the width W2 of a rawmaterial 11 b corresponding to the electrode 112 of the terminal 110. Inthis case, a portion of a scrap 12 other than the raw material 11 may beminimized in a sheet metal material 10.

FIG. 13 is a view illustrating locations of the electrodes of theterminals.

Referring to FIGS. 8 and 13, all the electrodes of the plurality ofterminals 110 are located in the gap A between the reference line P1formed along the inner radius R1 of the base 121 and the reference lineP2 formed along the outer radius R2 of the base 121. In addition, theelectrodes 112 may be arranged on the plurality of tracks around thecenter C of the busbar body 120. The locations of the electrodes 112correspond to the locations of the connection ends 21 of the coils 20.Accordingly, the connection ends 21 of the coils 20 passing through theelectrode holes 123 from under the base 121 are located inside theelectrodes 112 having the hook shape.

The terminals 110 are mainly divided into the terminals located at theoutermost side, the terminals located at the middle, and the terminalslocated at the innermost side around the center C of the busbar body 120in the radial direction. Two terminals 110 may be disposed on the sametrack. In addition, neutral terminals 30 may be disposed on theoutermost side. The electrodes 31 of the neutral terminals 30 may alsobe disposed in the gap A between the reference line P1 formed along theinner radius R1 of the base 121 and the reference line P2 formed alongthe outer radius R2 of the base 121.

Meanwhile, the electrodes 112 of all the terminals 110 other than theneutral terminals 30 may be formed in the same shape. Particularly, allthe shapes and sizes of the terminals 110 arranged on the same track maybe the same.

FIG. 14 is a view illustrating directions of the electrodes of theterminals. Referring to FIG. 14, a terminal 110A located at theoutermost side may be disposed such that an electrode 112A protrudesinward toward the center C in the radial direction. Here, the center Cmay be the center of the busbar body 110 (see FIG. 8). In addition,terminals 110B located at the innermost side and terminals 110C locatedat the middle may be disposed such that the electrodes 112 protrudetoward the outside from the center C in the radial direction. This isfor placing all the electrodes 112 in the gap A between the referenceline P1 and the reference line P2. In addition, this is also foreffectively ensuring a space for coupling with the connection ends 21 ofthe coils 20 in a limited space of the busbar body 120.

FIG. 15 is a view illustrating locations of the electrodes in acircumferential direction.

Referring to FIG. 15, the electrodes 112 of all the terminal 110 may bearranged at different locations around the center C in thecircumferential direction. For example, even the electrodes 112 disposedon the different tracks are also arranged at different locations in thecircumferential direction. When the locations of the electrodes 112arranged at the different tracks are C1, C2, and C3 in FIG. 15,locations of the terminals 110 may be determined such that the C1, C2,and C3 are different in the circumferential direction.

FIG. 16 is a view illustrating the terminals, and FIG. 17 is a viewillustrating the terminals as seen in a direction indicated by S of FIG.16.

The electrodes 112 of all the terminals 110 may be disposed at the sameheight. Here, the term “height” may be based on a direction parallel toa direction of the shaft of the motor. Referring to FIGS. 16 and 17particularly, the electrodes 112 of all the terminals 110 may bedisposed on a coplane h. Here, when a z-axis of FIG. 16 is the directionof the shaft of the motor, and an x-axis of FIG. 16 is a radialdirection of the motor, the coplane h may be a plane formed in theradial direction of the motor.

FIG. 18 is a view illustrating terminal holders.

Referring to FIG. 18, the terminal holder 122 may be formed toperpendicularly protrude from the base 121. The terminal holder 122includes a slot 122 a into which the body 111 of the terminal 110 isinserted to serve to fix the terminal 110. The terminal holder 122 maybe formed on the base 121 to arrange the slot 122 a on the body 111 ofthe terminals 110.

For example, the terminal holder 122 may include a first sidewall 122 band a second sidewall 122 c. The first sidewall 122 b and the secondsidewall 122 c are formed to perpendicularly protrude from the base 121.In addition, the first sidewall 122 b and the second sidewall 122 c aredisposed to be spaced a predetermined distance apart and face each otherto form the slot 122 a therebetween, wherein the body 111 of theterminal 110 is inserted into the slot 122 a. Since the terminal holder122 is formed to be a thin sidewall structure forming the slot 122 a asdescribed above, an amount of mold member forming the busbar body 120may be significantly decreased.

FIG. 19 is a plan view which illustrates the busbar assembly and inwhich locations of the electrode holes are illustrated.

Referring to FIG. 19, all the electrode holes 123 formed in the base 121may be arranged at different locations around the center C in thecircumferential direction. For example, when reference locations of anyelectrode holes 123 arranged on the different tracks in thecircumferential direction are L1, L2, and L3 of FIG. 19, the locationsof electrode holes 123 may be determined such that the L1, L2, and L3are different.

FIG. 20 and FIG. 21 are views illustrating a region in which theterminals are disposed.

All the terminals 110 may be coplanar. In addition, at least twoterminals 110 among the plurality of terminals 110 may be disposed atdifferent locations around the center C of the busbar body 120 in theradial direction, and the different locations may also be different inthe circumferential direction.

Referring to FIG. 20, at least two terminals of the plurality ofterminals 110 may be disposed at different locations in the radialdirection first. That is, the terminals 110 may be arranged on theplurality of circular tracks O1, O2, and O3 around the center C of thebusbar body 120. For example, any one terminal 110A may be disposed onthe circular track O1 located at the outermost side in the radialdirection. In addition, another terminal 110B may be disposed on thecircular track O2 located at the middle in the radial direction.

In addition, at least two terminals of the plurality of terminals 110may be disposed at different locations in the circumferential direction.For example, any one terminal 110B may be disposed in a first region S1in the circumferential direction. In addition, another terminal 110A maybe disposed in the circumferential direction in a second region S2 whichis different from the first region S1.

Referring to FIG. 21, for example, any one terminal 110C may be disposedon the circular track O3 located on the innermost side in the radialdirection. In addition, another terminal 110B may be disposed on thecircular track O2 located at the middle in the radial direction. Inaddition, any one terminal 110C may be disposed in the third region S3in the circumferential direction. In addition, another terminal 110B maybe disposed in the circumferential direction in a fourth region S4different from the third region S3.

While the embodiments have been described, locations of two terminals110 have been compared to describe locations thereof. However, thepresent invention is not limited thereto, and two or more locations ofthe terminals 110 may also be different in the circumferential andradial directions.

FIG. 22 is a view illustrating the locations of the electrodes of theterminals in a radial direction.

Referring to FIG. 22, electrodes 112 a, 112 b, and 112 c of theterminals 110 may be arranged to be located at different locations to becoplanar around the center C in the radial direction. For example, theelectrodes 112 a, 112 b, and 112 c of the terminals 110 may be arrangedon the circular tracks O1, O2, and O3, respectively, which havedifferent radii, around the center C. The circular tracks O1, O2, and O3correspond to the locations of the connection ends 21 of the coils 20.Although not illustrated in the drawings, all the electrodes 112 a, 112b, and 112 c of the terminals 110 may be arranged at different locationsaround the center C in the radial direction.

As described above, the electrodes 112 a, 112 b, and 112 c are locatedto be coplanar at different locations in the embodiments. Accordingly,heights of the busbars do not need to be increased in multiple stages orthe terminals do not need to be alternately installed so as to formdifferent heights of the terminals.

In addition, the electrodes 112 a, 112 b, and 112 c of all the terminals110 may be arranged to be located at different locations around thecenter C in the circumferential direction. When the locations of theelectrodes 112 a, 112 b, and 1 12 c arranged at different tracks are C3,C2, and C1 of FIG. 22, locations of the terminals 110A, 110B, and 110Cmay be determined such the C3, C2, and C1 are different.

As described above, the busbar assembly and the motor including the sameaccording to one exemplary embodiment of the present invention have beenspecifically described with reference to the accompanying drawings.

While the present invention has been particularly described withreference to exemplary embodiments, it will be understood by thoseskilled in the art that various changes in form and detail may be madewithout departing from the spirit and scope of the present invention.Therefore, the exemplary embodiments should be considered in adescriptive sense only and not for purposes of limitation. The scope ofthe invention is defined not by the detailed description of theinvention but by the appended claims, and encompasses all modificationsand equivalents that fall within the scope of the appended claims.

[Reference Numerals] 100: BUSBAR ASSEMBLY 110: TERMINAL 111: BODY 112:ELECTRODE 120: BUSBAR BODY 121: BASE 122: TERMINAL HOLDER 123: ELECTRODEHOLE 200: STATOR 300: ROTOR 400: ROTATIONAL SHAFT

1-10. (canceled)
 11. A busbar assembly comprising: a busbar body havingan inner radius and an outer radius; and a plurality of terminalscoupled to the busbar body and each including a body and electrodes,wherein all the electrodes of the plurality of the terminals aredisposed in an area between the inner radius and the outer radius, theplurality of the terminals are disposed at the same height, and at leasttwo terminals among the plurality of the terminals are disposed atdifferent locations around a center of the busbar body in radial andcircumferential directions.
 12. The busbar assembly of claim 11, whereinthe electrodes of the at least two terminals of the plurality of theterminals are located at different locations around the center of thebusbar body in the radial direction.
 13. The busbar assembly of claim12, wherein: the busbar body includes at least one electrode hole; andthe electrode hole is disposed below the electrode of the terminal anddisposed around the center of the busbar body in the circumferentialdirection at a location corresponding to the electrode of the terminal.14. The busbar assembly of claim 12, wherein all the electrodes of theplurality of the terminals are disposed at different locations aroundthe center of the busbar body in the circumferential direction.
 15. Thebusbar assembly of claim 12, wherein: the body has a belt shape; and theelectrodes have a hook shape and are formed by bending the opposite endportions of the body along an extending direction of the body.
 16. Thebusbar assembly of claim 15, wherein the electrodes formed at theopposite end portions of the body are formed to be bent in the samedirection.
 17. The busbar assembly of claim 15, wherein the electrodedisposed at an outermost side around the center of the busbar in theradial direction protrudes inward.
 18. The busbar assembly of claim 15,wherein the electrode disposed at an innermost side around the center ofthe busbar in the radial direction protrudes toward an outside.
 19. Thebusbar assembly of claim 12, wherein all the electrodes of the pluralityof the terminals are disposed at the same height.
 20. The busbarassembly of claim 12, wherein the plurality of the terminals comprise atleast a first terminal, a second terminal and a third terminal which aredisposed at different locations around a center of the busbar body inthe radial direction.
 21. A busbar assembly comprising: a busbar bodyhaving an inner radius and an outer radius; and a plurality of terminalscoupled to the busbar body and each including a body and electrodes,wherein the electrodes of the plurality of the terminals are located onthree different circular tracks between the inner radius and the outerradius, wherein the busbar body comprises a plate like base and terminalholders extending perpendicularly to the base, the body of the terminalis inserted into the terminal holder, and wherein the body has a beltshape, and the electrodes are formed in a hook shape by bending theopposite end portions of the body along an extending direction of thebody.
 22. A motor comprising: a busbar assembly comprising: a busbarbody having an inner radius and an outer radius; and a plurality ofterminals coupled to the busbar body and each including a body andelectrodes, wherein the electrodes of the plurality of the terminals arelocated on three different circular tracks between the inner radius andthe outer radius, wherein the busbar body comprises a plate like baseand terminal holders extending perpendicularly to the base, the body ofthe terminal is inserted into the terminal holder, and wherein the bodyhas a belt shape, and the electrodes are formed in a hook shape bybending the opposite end portions of the body along an extendingdirection of the body; a stator including a coil connected to the busbarassembly; a rotor disposed inside the stator; and a rotational shaftcoupled to the rotor.